Gas flow meters

Versatile gas flow meter for measuring tasks in gas production

Your Benefits

  • No plate changes required - one gas flow meter for the complete well lifetime
  • No pressure loss - due to ultrasonic measurement principle
  • Optimum availability - almost wearfree operation, no liquid build up in the meter and the possibility of remote monitoring
  • Highly reliable - continuous measurement even under challenging process conditions
  • Long service life - wet gas capable ultrasonic sensors made of titanium
  • Full process control and predictable service - due to intelligent meter diagnostics
  • Low installation efforts - integration of pressure- and temperature measurement, HART®-interface and commissioning assistant

The exact device specifications and performance data of the product may deviate from the information provided here, and depend on the application in which the product is being used and the relevant customer specifications.
In accordance with Article 2 (4), this product does not fall within the scope of RoHS directive 2011/65/EU and is also not designed for use in products which fall within the scope of this directive. You can find additional information in the product information.


Versatile gas flow meter for measuring tasks in gas production

Ultrasonic gas flow meter FLOWSIC30 is designed for use in natural gas production applications such as coal seam gas. The dual-path meter comes with a robust carbon steel meter body and full-titanium transducers. The ultrasonic measurement technology has no moving parts and is virtually maintenance free. The rugged design with integrated wires protects the meter from harsh ambient conditions while the large turn-down ratio typically covers all flow rates from a gas production well. FLOWSIC30 is equipped with integrated diagnostics that monitor the meter status and indicate the presence of liquids in the gas stream. With integrated pressure- and temperature measurement and volume conversion according AGA 8 it provides standard flow readings and reduces installation efforts. Power consumption of only 65 mW and the two-wire loop powered concept make integration easy while HART® and Modbus communication provide versatility in data transfer.

At a glance
  • High turndown ratio
  • Designed for wet gas applications
  • Intelligent meter diagnostics incl. wet-gas detection
  • Possibility for remote monitoring thanks to digital interfaces
  • Two-wire-transmitter with digital HART® interface
  • Full integration of pressure- and temperature measurement, volume conversion and energy flow rate calculation


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Technical overview

  • Technical data overview

    Technical data overview

    Measured valuesGas volume s. c., gas volume a. c., volumetric flow s. c., volumetric flow a. c., gas pressure, gas temperature, sound velocity, methane content, energy flow rate
    Measurement principleUltrasonic transit time difference measurement
    Number of measuring paths2
    Hazardous area



    Gas temperature–10 °C ... +80 °C
    Operating pressure0 bar (g) ... 19.6 bar (g)
    Nominal pipe sizeDN100 / 4 inch, schedule STD
    Enclosure ratingIP66 / IP67
    Type of fieldbus integrationRTU RS-485
    Diagnostics functions

    Integrated device diagnosis

    Wet gas detection

All technical data can be found accompanying the individual product